Digital Electronics

Number System

100

Base 2

Binary Number

200

One nibble is equal to how many bits

4 bits

300

Number system represents 0000 to 1111

Hexadecimal

400

multiply X^P  is to convert?

X= Base

P= Position value

Any number system to Decimal

500

The Number of binary digits in the binary representation of 257 are

9

Conversion (NS)

100

0011 converted to decimal

3

200

(312)₈ into decimal

(202)₁₀

300

hexadecimal number (1E.43)₁₆ = ( ? )₈

(36.206)₈

400

Convert 1011101010111110 to Base 16

BABE

500

(106)₁₀ = (211)_x   find X

X=7

Gates

100

NOR, NAND

Universal Gates

200

Output is only on if both inputs are on

AND Gate

300

Has output only if both inputs are off or on. If one input is on, there is no output.

XNOR

400

Output low only when all inputs are high

NAND gate

500

Suppose the output of an XNOR gate is 1.

A = 0, B = 0

A = 1, B = 1

Circuits

100

No. of NOR gates needed to implement AND gate

3

200

If I need a light to turn on when 2 switches are turned on, what gate do I need?

AND

300

How many 2 input AND gates would I need to have 1 output with 4 inputs?

3

400

AB + AC + BC 

A ⊕ B ⊕ C

Full Adder 

Sum and Carry

500

combinations of input values and outputs

Truth Table

Boolean Algebra

100

The Minterms for four variables

16

200

(AB)' = A' + B'

DeMorgan's Law

300

The logical sum of two or more than two logical products is termed as

SOP

400

x'y'z'+x'y'z'+x'y'+xy' Simplify

y'

500

A variable or the complement of the variable in Boolean Algebra is called

Literal